Statistical machine



July 13, 1943. A. THOMAS Erm.

STATISTICAL MACHINE l Filed Dec. 30, 1938 9 Sheets-Sheet l I Inventors. Q.

Attorney July 13, 1943. A. THOMAS ETAL STATIST ICAL MACHINE Filed Dec. 30, 1938 9 Sheets-Sheet 2 -%fm4 WQ. Man- A ttorne 9 Sheets-Sheet 3 A Homey July 13, 1943. A. THOMAS ETAL STATISTICAL MACHINE Filed Dec. 30, 1938 9 Sheets-Sheet 4 Fig. 3.

tforney July 13, 1943 A. THOMAS ET AL I 2,324,438

STATISTICAL MACHINE 'Filed Dec. 30, 1938 9 Sheets-Sheet 5 Fig. 1o.

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A. THOMAS ET'AL STATISTICAL MACHINE Filed Dec. 30, 1938 9 Sheets-Sheet 6 by pay/- Attorney A. THOMAS E-rAL STATISTICAL MACHINE Filed Deo. 50, 1938 9 Sheets-Sheet 7 164 Fig-6.

Inventors CL. (Mom 1N@ M.

Attorney July 13, 1943. p THOMAS ETAL 2,324,438

STATISTICAL MACHINE Filed Dec. 30, 1938 9 Sheets-Sheet 8 Fig. 7.

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x4/Mj A ttrney July 13, 1943. A. THOMAS ErAL STATISTICAL MACHINE Filed Deo. 30, 1938 S-Sheets-Sheet 9 Inventors @.ewm w MQ. M@

Wg/f2' Attorney Patented July 13, 1943 i STTISTCAL MACHINE Arthur Thomas, Walli Carshalton, England, assignors to frey Holden,

ngton, and Norman Geof- Powers Accounting Machines Limited, London, England, a company of Great Britain Application December 30, 1938, Serial No. 248,500

In Great Britain January 5, 1938 6 Claims.

This invention relates to record sensing mech anism for statistical machines.

The usual form of record card has 45 columns for the reception of perforations, there being l2 index point positions in each column. It has already been proposed to by placing a second set of perforations in the 'spaces between the perforations already made in the card. Such a card will contain two separate sets of record perforations, the perforations of double the card capacity one set being displaced in the direction of the matter of United States Patent No. 2,290,827, l

issued to Arthur Thomas on July 2l, 1942, and comprises the combination of a reciprocable sensing pin box, means for arresting and holding a card in a first sensing position relative to said pin box during two consecutive reciprocations of the pin box and for then releasing said card, means for arresting and holding the card in a second `sensing position relative to said pin box during the next two consecutive reciprocations of the pin box and for then releasing said card, said sec- ,ond sensing position being spaced relatively to said first sensing positionl one half the pitch of the sensing pins along the card path, a plurality of columns of settable stops, a first transmission means for setting said stops from one group of columns of pins in the pin box, a second transmission means ior setting the same stops from another group of columns of pins in the pin box, a disabling device to each of said transmission means, means for rendering the disabling device for the rst transmission means effective and ineffective at alternate reciprocations of the pin box, and means for rendering the disabling device for the second transmission means ineffectivewhen the other disabling device is effective and vice versa.

A record card controlled statistical machine according to the present invention, having card sensing means including a control sensing element positioned to sense a control hole in a card, includes the combination of a front card stop and a rear card stop of which the front card stop is so disposed in relation to the sensing means as to arrest a card in position for sensing of holes lpunched therein in the normal hole positions described with reference thereon, while the rear card stop is disposed behind the front card stop by a distance equal to half the pitch of the hole positions along a card column. Thus said rear card stop, when projected alone into the card path, arrests in position for sensing holes displaced fromthe normal hole positions by half the pitch of said hole positions.

The machine further includes means normally operative to feed a card to said sensing means at each operation thereof, means normally operative to move both said card stops into the card path at each operation of said sensing means, a device for retaining the rear card stop in the card path during the next sensing operation, and a. device for preventing movement of the front card stop into the card pathY during said next sensing operation.

Finally the machine includes means operable by said 'control hole sensing element to render all said three devices effective contemporaneously.

A record card controlled tabulating machine according to the invention may include means normally operative to feed a card at each sens- `ing operation, two card stops, one in advance of the other, means normally operative to move both card stops into the card path at each sensing operation and meansr operative when a control ihole in a card is sensed to retain the rear card stop in the card path during the next sensing operation, to prevent movement of vthe front card stop into the card path during said next sensing operation and also to prevent a new card from being iedduring said next sensing operation.

According to a feature of the invention in a record card controlled tabulating machine hav-` ing group control mechanism for initiating a total taking operation when a change in group designation occurs, means is provided which is operative when the control hole is sensed to delay the total taking operation for one operation of the sensing means.

One embodiment of the invention will now be to the accompanying diagrammatic drawings which illustrate the invention as applied'to a record card controlled tabulating machine.

In the drawings:A

Figs. 1 and 1A together form a general elevation of the part of the tabulator containing the mechanism according to the invention;

Fig. 2 is a perspective View showing the means for operating the card stop control mechanism;

Fig. 3 is an outside elevation of the card stop control mechanism;

a card 'rant I6 in .the counterclockwise drives theshaft 'quadrant serving merely to rotate the pinion I5 f Fig. 4 is an outside elevation of part of the mechanism shown in Fig. 3, certain parts being omitted to show other parts behind more clearly.

Fig. 5 is an elevation of the card stop control mechanism, viewed from the right hand side of Fig. 3.

Fig. 6 is an outside elevation of one end of the item sensing pin box;

Fig. 7 shows the control sensing pin and the mechanism actuated thereby;

Fig. 8 is a section on the line VIII-VIII of Fig. 7;

Fig. 9 is a perspective view of the mechanism for delaying the total taking operation for one cycle when the last card of a group contains two sets of data; and

Fig. l shows a detail of the mechanism for controlling the total taking mechanism.

The cards are fed by means of a picker knife I (Fig. l) from the usual card magazine 2 through a card throat 3 to feed rolls 4 which convey it to the xed pin plates of a reciprocating designation pin box indicated generally at f1. Secured to the frame of the pin box is Ia card stop 6b which moves up and down with the pin box and arrests the card in the sensing position inthe well known manner.

The picker knife I is reciprocated by means of two arms 1 of which only one is shown, these rarms being secured to a picker operating shaft 8 carrying an arm 9 pivoted to an eccentric rod "it actuated by an eccentric (not shown) secured to a shaft I2.

rlfhe construction of the designation pin box 6 is the same as that described in U. S. patent specication No. 1,661,684, issued March 6, 1928, the pin box being reciprocated by means of connecting rods I 3 (of which only one is shown) driven by means of eccentrics I4 secured to the shaft vI2.

The mechanism for driving the shaft i2 is also described in specication No. 1,661,684 and includes a pinion I5 free on the shaft I 2 and meshing with a quadrant I6 mounted on a shaft I7. rifhe pinion I5 is connected to the shafti by a one way-drive as described in the aforesaid prior specification, so that the movement of the quadv direction only, I2, the return movement of the idly on the shaft. The quadrant is oscillated by an arm i8 secured to a shaft I9 and engaging with an arm 2d on the quadrant, which is maintained in contact with a roller 2I on the arm I8 by means of a spring r22 secured to a lug 23 on the quadrant. The shaft I9 is rotated from the tabulator main shaft 24 bymeans of gear Wheels 25, 26, and the gear wheel Y26 also engages with a gear wheel 2'! freely mounted on the shaft i2 and 4serving to drive the feed rolls 4 through intermediate gearing 28.

As is well known, the designation eld of each card is read by the designation pin box 6 and the field or fields of the card containing data or items other than designations are sensed by a separate pin box indicated generally at 29, the item sensing pin box 29 beingdisposed relatively to the designation pin box 6 so that the card is sensed by the pin box 29 one cycle or revolution of the main shaft 24 later than it is sensed by le pin box Ii.A

vThe item sensing pin box 29 is constructed in .the manner described in British specification No.

401,012 and is reciprocated by a cam yon the normally held to the right in Fig.

main shaft 24 in the manner described in that prior specification.

In order to permit two sensing operations to be performed on a card while in the item sensing pin box 29, two card stops 3G and 3l are provided for the pin box 29. The pin box however, has only one card stop which is fixed to the pin box and moves with it in the usual manner. Each of the card stops 3S, 3l is carried at the upper end of a post 33, 34 (Figs. l, 3, 4 and t) respectively. The card stops 3i) and 3i aro guided in a slot formed between the pin plates 35 of the item sensing box and a xed block 35 (Fig. 3) and the posts 33, 34, are guided at their lower ends in a bracket 31 xed to the base piate 38 (Figs. 3 and 4).

The front card stop post 3S carries a bracket 3s to which is pivoted at 4@ a triangular plate di carrying a roller 42 engaging with a cam 43 secured to a shaft 44.

'.he shaft 44 is driven at half the speed of the main shaft 24 by means of gear wheels 4S, that is to say for each revolution of this half speed shaft the item sensing pin box 29 and the adding and printing mechanism of the tabular- 'to-execute two complete cycles of operation.

r)The 'cam 43 is of double form and its peaks are 180 apart so that normally the front card stop Sil is raised twice during each revolution of the half speed shaft 44, i. e., once for each reciprocation of the pin box 29.'

vThe rear card stop post 34 carries an abutment overlying an abutment 41 on the front card stop post so that the front card stop post 33 when raised will also lift the rear post 34 but can descend independentlyof the latter. The two card stops are lowered by independent springs 48 and 49 secured to a frame plate 50 at their lower ends and at their upper ends to attaching members 5I on the respective card stop posts.

Since the arm I8 (Fig. l) already described is rotated -from the tabulator main shaft '24, the card feed quadrant I5 which actuates the designation sensing pin box 6, the picker knife I and the feed rolls 4, tends to operate to feed a card to the pin box S and to cause a reciprocation of said pin box 6 at each reciprocation of the pin box 28, and normally the quadrant operates in this manner.

Each cardrhaving two sets of data perforations is provided with a special control hole which is sensed by a control pin 52 in the item sensing pin box 29 (see Figs. 2, 7 and 8). When this pin 52 passes through a control hole in a card it pushes down a small pin 53, which is urged upwardly by a spring 53a and of which the upper end projects into the lower pin plate 35. This small pin 53 when depressed rocks a bell crank 54' which pulls a horizontal slide 55 to the left in Fig. 7 (to the right in Fig. 2). The slide 55 is 7 by the spring 53a rand carries at its right hand end (Fig. 7; left hand end in Fig. 2) a depending arm 51 pivote-:l to the slide at '56 and held in position by a spring 58. The slide 55 is guided at its left hand end (Fig. 2) in a slot 59 formed in the vertical portion of a bracket 60.

Pivoted on a shaft @I (Figs. 1A and 2) is a bell crank 62, 62a. of which the arm 2a carries a roller 62h engaging with a cam 63 secured to the main shaft 24. Plvcted `at the upper end 62e of the arm 62 is a testing lever 64, the lower end of this lever 64 being pivoted at 65 (Fig. 2) t0 "a horizontal link '66 pivot-'ed a-t its other end to an arm 01 (Figs. 1 and 9) freely mounted on a shaft 68. Also freely mounted on this shaft 63 is an arm 69 connected by a spring 10 to the arm 61, on which a nose 1| is pulled by the spring 10 against a pin 12 on the arm 69. The arm 65! is connected by a vertical link |13 to mechanism which will be described later. This mechanism includes a spring |56 which pushes the lever. |13

`downwardly thereby tending to hold the link 66 to the right in Figs. 2 and 9 (left in Fig. 1) and the lower end 65 of the testing lever 64 stationary.

The upperend of the testing lever $4 is guided in a slot 14 formed in a horizontal portion a of the bracket 60 (Figs. 2 and 6).

The bell crank 62, 62a is rocked at each machine cycle by the cam 63, and if the upper end of the testing lever 64 is free to move, the testing lever will rock counter-clockwise (Fig. 2) about its pivot E35 which is normally held stationary by the action of the spring |561` controlling the link |13.

The upper end of adjacent to the arm the testing lever 04 rocks 51 pivoted to the slide 55,

and the position of the slide 55 is normally such that the arm 51 is clear of the path of movement of the upper end of the testing lever |54, so that the latter is free to rock. When, however, the control pin 52 senses a hole it depresses the small pin 53 thereby rocking pulling the slide 55 to the right in Fig. 2 so that the arm 51 stands in the path of the upper end of the testing lever (54. Now when the bell crank 62, 62a. rocks, the upper end of the testing lever 64 is obstructed by testing lever is caused to rock clockwise (Fig. 2) about the pivot 62o thereby pulling the link 66 to the left, rocking the arm 61, G9 counter-clockwise and raising the link |13 (Fig. 9). The operation which is performed as a result of raising the link |13 will be described later.

Pivoted to the link 65 at 15 is another horizontal link 1E (Figs. 1 and 2) pivoted to an arm 11 secured to a shaft 1S to which is also secured an arm 19. Pivoted to the arm 19 is a vertical push rod 80, which is guided for vertical reciprocation by means of a slot engaging a pin 3| secured toa fixed frame plate. Consequently when the link 6d is moved to the left by the obstruction of the upper end of the sensing lever 64, the link 16 is also moved to the left whereby the shaft 18 is rocked counterclockwise and the push rod 80 is depressed.

This depression of the push rod 80, effects rocking of a shaft 82 which will hereinafter be referred to as the two-stage shaft (see Figs. 1 to In order to cause rocking of the two-stage shaft 82 the following mechanism is provided. Secured to the tabulator main shaft 24 is a cam 83 (Figs. 1 and 2), which at each revolution reciprocates a slide 84 by means of a pivoted lever 85. The slide 84 is guided for longitudnal reciprocation in a bracket (not sho-wn) and is pulled upwardly by a spring 86 against a roller 31 on the lower end of the push rod 80.

The slide 04 has a shoulder 88 at its free end and the spring 86 normally holds the slide in such a position that, as the slide reciprocates, its shoulder S3 passes clear of a pin 89 on an arm Q0 secured to the two-stage operating shaft 82.

As already described, when the control pin 52 senses av hole it causes depression of the push rod S0, whereby the slide B4 is depressed to bring its shoulder 88 into the path of the pin 89. It

the bell crank 54` and the arm 51 whereby the 'in position by a latch 95 pivoted at `frame plate 5S and engaging a pin S6 on the may here be ,pointed out that the relative timing of the cams 63 and 83 is such that the push rod does not descend until the slide 84 has moved to the left (Fig. 1) sufficiently to permit the shoulder 88 to pass to the left beyond the pin 89.

When the slide 84 is thus pushed down the shoulder 83 during the return movement of the slide 84 to the right (Fig. 1) engages the pin 89 and rocks the two-stage shaft 82 counter-clockwise, (Figs. 1, 3 and 4) against the action of a spring 82a secured at one end to an arm B2b on the shaft 82 and at the other end to a post 82e attached to the base plate 3S.

' Secured to the two-stage shaft 82 is an arm 9| and freely mounted on the shaft 82 is a lever 92 (Fig. 4) to which the arm 9| is connected by a spring 93. When the two-stage shaft 82 is rocked counter-clockwise by the action of the slide 84, the arm 9| secured to said shaft positively moves the lever S2 with it by engagament of said lever 0| with a pin 04 on the arm 92. After the lever 92 has thus been rocked, said lever is retained 99a to the lever 92'.

This lever e2 is connected through a link 91 (Fig. 3) to the triangular plate 4| which is pivoted to the front Acard stop post 33, and when the two-stage shaft B2 is thus rocked, the lever 02 rocks the triangular plate 4| clockwise about pivot 40 to bring the roller 42 clear cf the 'operating cam 43, whereby the front card stop 30 is permitted to descend. The card, therefore, is' immediately advanced by the continuously rotating feed rolls 29a to its second position in which it is arrested by the rear card stop 3| which is still retained in its raised position by the means now to be described.

Resting against the triangular plate 4| is a pin $8 (Fig. 4) on a latch 99 for the rear card post 34 which latch is pivoted to the frame plate 5; at 99a, and when the triangular plate 4| is thus actuated it permits this latch 9S to engage a projection It() on a plate |0011 carried by the the rear card stop 34 thereby preventing the the rear card stop post 34 thereby preventing the action of its spring 49.

Pi'voted to the frame of the mechanism at |0| is an obstructorarm |02 (Figs. 1 and 3) which when rocked counter-clockwise is disposed to arrest operation of the card feed quadrant I6. To this end the obstructor arm |02 has at its upper end a lug |03 which engages below the end of the arm 20 secured to the quadrant and prevents the latter reaching the end of its movement in the clockwise direction. The driving clutch projection carried by the pinion |'5 and described in specification No. 1,661,684 is, therefore, unable to engage with the driven clutch element secured to the shaft l2 and, therefore, on the next counter-clockwise movement of the quadrant I6 the pinion l5 rotates idly. Hence the shaft l2 is not rotated and the picker and designation pin box 6 are inoperative. The obstructor arm |02 is pivoted at |0211 to a link |04 carrying a pin |05 which is engaged by a lever |06 on the two-stag shaft 82 (Figs. 3 and 5) so that when said shaft 82 is rocked as described above, the obstructor |02 is rocked to bring its lug |03 into the path of the arm 20 of the quadrant IE, whereby the card feed is arrested. The link |04 is supported by means of a pin and slot connection |0411, to the frame.

Since this quadrant also actuates the designation pin box the latter is also arrested. The Vtiming of the arrest of the quadrant I6 is such that when said quadrant is arrested the designation pin box described in Patent No. 1,661,684 is in a position such that its oWn card stop, which is attached to it, retains the card which was last fed to it by the picker. .In this way, the card is prevented from being fed on to the item sensing pin box 5 by the feed `rolls 4 which rotates continuously.

Thus when a card having two sets of data perforations enters the item sensing pin box 29 and is sensed during the rst reciprocation thereof, the triangular plate 4| is swung into a position in which the roller 42 is clear of the cam 43, whereby the front card stop 30 is permitted to descend under the action of itsl spring 48 after the card has been sensed once. At the same time the latch 99 is operated to retain the rear card stop 3| in its raised position, so that when the front card stop 39 descends the card is not ejected but is merely advanced by the feed rolls 29a until arrested by the rear card stop. Further, the obstructor arm |92 arrests the card feed quadrant i9 whereby the feed of the next card is prevented.

After the item sensing pin box 29 has performed the second sensing operation the latch 99 for the rear card stop 3| is rocked clockwise by one of two pins, |07, |93 (Fig. 4) on the cam 43 secured to the half speed shaft 44. Consequently the latch 99 moves clear of the projection |00 on the rear card stop postv 34 and the latter descends under the action of its spring 49 thereby permitting the card to be ejected by the feed rolls 29a. The latch 95 for the arm 92 o-n the two-stage shaft 82 carries a nose 95a pulled by a spring 95h against a pin 95e on the latch 99 so that when the latter is rocked clockwise the pin 95C rocks the latch 95 clockwise and disengages it from the pin 96 on the lever 92. This lever 92 is, therefore, permitted to return to normal position under the action of spring 93 thereby restoring the roller 42 on the ,triangular plate il to its normal location relative to the `earn 43, and also removing the obstructor |02 from the arm 29 of the card feed quadrant I6.

Since it may be required to disengage the latch -99 for the rear card stop 3| after either an even or an odd number of cards, two disengaging pins |07, |08 are provided on the cam 43.

Since however, one of these pins lill, |98 would release the latch 99 too soon, the latch is provided with a disengaging member |99 pivoted thereto at or |90 engages to release the latch 99, and secured to the two-stage operating shaft B2 is a release arm carrying a pin lila which engages a tail la of the disengaging member |09 and rocks this member |09 out of the path of the pins |91, |139 on the cam 43. The two-stage operating shaft 82 is returned to normal position immediately it reaches the end of its travel and therefore the disengaging member |09 is only held in the inoperative positiony while one of the pins |07, |98 passes by it. When the nextA pin cornes round, this pin contacts with the disengaging member |99 and releases the latch 99 for the rear card sto-p 3|, thereby allowing said card stop to descend and permit ejection of the card.

Means is also provided according to the invention for delaying the operation of the total taking vmechanism for one cycle of the tabu- |i0 and against which the pin |51 .'lator main shaft 24 each time a change in group designation is detected on a card punched with Vtwo sets of data. By this means when the last card of a group is one which contains two sets of data, .an eXtra cycle is aiorded to permit the second set of data to be transmitted to the adding .mechanism before Ythe total taking mechanism commences to operate.

The total taking mechanism is of the kind .described in British specification No. 371,849 and only so much of the mechanism described in specication No. 371,849 as is necessary foran understanding of the invention will be described 'in the present specification. In the drawings to thepresent specification parts which also appear -in the drawings to specification No. 871,849 will be given .the same referencenumerals as in that specification.

In the .machine described in the complete specification No. 371,849 three pairs of parallel bars shown at H5, |24, H6, |25 and |26 respectively are mounted on top of the designation ksensing pin box so as to rise and fall with it.

As shown in Figures 9 and l0 in the machine Iaccording to the present invention the pairs of parallel bars above referred to are not carried by the end plates 44 of the designation pin box 5, but are mounted in brackets |50, |5| carried by a bar |52 which passes through slots in the end plates 44 so as to be capable of sliding in the slots. A lug |53 on the bracket |50 is slidably supported on a pin |54 projecting from the one end plate 44 and a lug |55 on the bracket |5| is likewise slidably supported on a similar pin |54a (Fig. l) projecting from the other end plate 44. Y The operation of these parallel bars is fully described in specification No. 371,849, but it will be briefly outlined in the following description Vwith particular reference to Figure 10 which Vshows the pair of bars H6, |25.

The upper bar |25 is pivoted at its left hand end to a bell crank ||9 pivoted on a shaft A supported in the bracket |50 and the lower bar H' is pivoted to a horizontal arm of this bell crank ||`9. The bell crank I9 has a depending tail 9a the function-ofr which will be explained later.

At its right hand -end the bar |25 is pivoted to a bell crank |22A freely mounted on a shaft B mounted in the bracket |5l, while the right hand end of the lower bar |6is pivoted to a horizontal 'arm of this bell crank |22, the bell crank |22 also has a depending tailv |22a, the function of which will be explained later.

A spring |28 connects the-bar 25 to the bracket |50` and tends to pullA the bar |25 to the left in Figure 10. When the spring |28 pulls the bar |25 to the left, the bell cranks ||9 and |22 are rocked counter-clockwise about their respective pivots A and B and the bar H5 consequently descends.

The pair of bars H5, |24 is mounted in a similar manner to the 'bars H9, |25, the corresponding bell cranks being shown at 8 and |2| respectively in Figure 9.

Also the pair of parallel bars 1, |26 are likewise mounted in the same manner as the bars H6, |25- and the corresponding bell cranks are shown at and |23 in Figure 9.

The bell cranks |20 and |23 have tails |20a and |23a respectively, while the bell crank |2| also has a tail |2|a (see Aalso Figure 1).

When Vthe designation pin box 6 is in its uppermost position the tail ||9a of bell crank ||9 stands over a lug |43 on a lever |40 (Figures 9 and and the tail |2011 of the bell crank |20 stands over the end of a lever (Figures 9 and l0). Also when the pin box 5 is in its uppermost position the tails |2|a, |22a and |2311 of the bell cranks |2|, |22 and |23 stand above corresponding teeth |33, |34 and |35 formed in a slide |35 (Figures 1 and 10) which is pivoted at |38 to a total testing lever 13 described in specification No. 371,849.

As explained in specification No. 371,849 a bell crank |3| (not shown in the accompanying drawings) prevents the lower bars H5, H6 and H1 from descending when the pin box 5 is at the top of its stroke. As the pin box 6 descends this bell crank moves away from below the parallel bars SI5, H6 and H1 and permits the springs 21, |28 and |29 respectively attached to he upper bars i213, and |25 to pull these upper bars to the left in Figures 9 and 10, whereby the bell cranks H8, H9, |20, |2|, |22 and |23 are rocked counter-clockwise so that as the pin box continues to descend taking with it the assembly of parallel bars, the lower ends of the tails Hga, |2911 swing down to the right of the lug |53 and lever |15 respectively and do not engage these levers, likewise the tails |2|a, |2211, |23a swing down to the right of the bar (Figure 10) and do not engage this bar.

As also explained in speciiication No. 37 when a change in designation occurs in a subgroup the bar H5 is prevented from descending with the designation pin box 6 so that the assoeiated spring |21 cannot pull the corresponding upper bar |24 to the left, accordingly the bell cranks l i8 and |22 are not rocked and therefore as the p-in box descends the lower end of the tail |2|a moves into the path of a tooth |33 on the slide |35 (see Figure 1) The total testing lever 13 to which this slide is pivoted normally rocks at each machine cycle and when obstructed initiates a sub-total operation, consequently when the bar H5 is prev vented from descending with the designation pin box and the tail |2|a engages the tooth |33 the total testing lever 13 is obstructed and a subtotal taking operation ensues.

When a change in designation in a first main group occurs the bar H6 is prevented from descending with the designation pin box and as a result the bell cranks are prevented from rocking under the action of the spring |28. Consequently the lower end of the tail |2211 moves into the path of the tooth |34 on the slide |39, whereby the total testing lever 73 is obstructed thereby initiating a sub-total operation. In addition, the lower end of the tail H91; engages the lug |46 and rocks the lever |40 whereby as explained in specification No. 371,849 mechanism is set in motion to cause the taking of a first grand total after the sub-total taking operation has been completed.

When a change in designation occurs in a second main group the bar H1 is prevented from descending with the designation pin box andconsequently the bell cranks |23 and |23 are prevented from rocking. As the pin bix descends the lower end of the tail |23a engages the tooth |35 of the slide |33 whereby a sub-total taking operation is initiated. At the same time the lower end of the tail |2011 engages the lever |15 and rocks it thereby setting in motion mechanism which causes the taking of a second grand tot-al after the sub-total taking operation has been completed.

A spring |56 connected to the bar |52 pulls the H9 and |20 (Figure 10) L i ing operation commences.

whole assembly of parallelbars, together with their brackets and |5| 'over to the'leftin Figs. 9 and 10, and the bracket |50 carries a de.. pending lug |51 which is held in engagement with a pin |58 on a bell crank |59 by the action of this spring |55. The bell crank |59 is pivoted at |60 to a bracket |6011 secured to a vertical: post 6a which the pin box 6. The bell crank |59 is also pivoted to the upper end of the link |13 already described. Accordingly lthe spring |56 normally holds the link |13 in its lowermost position.

When the assembly of parallel bars isv held in this normal position by the spring |56 the .tails H911, |2011, |2|a, |2211, |2311 operate inthe manner described in specication No. 371,849, so that if one of the bars H5, H6, or H1 is prevented from descending with -the designation sensing pin box a total taking operation willbe caused a's described in the aforesaid prior specification..

When a card having two sets of data is sensed, during the first sensing operation the control4 pin 52 passes through the hole in the card and as already described the upper end ofthe testing lever 64 is obstructed whereby the link 66 is pulled to the left and the link |13 is raised. The raising of the link |13 rocks the bell crank |59 clock-.` wise whereby the pin |58 attached thereto by acting on the lug |51 pushes brackets |50 and |5| together with the parallel bars over to the;A right. When the parallel bars are thus pushed to the right, tails |2|a, |2211 and |2311 v.are in positions such that even if change in designation' occurs and one of the bars H5, H6 or H1 is pre-- Vented from descending with the designation pin box, the corresponding tail |2|a, |2211 or |23114 passes clear of the teeth on the slide |36 and a.; total taking operation does not occur. Also the. tails H911, |20a do not engage the lug |46 or the lever |15. Consequently, the parallel bars are.Y rendered inoperative and cannot cause a total? taking operation to occur if a change of desig; nation is detected.` n

During the next cycle the second sei; of dataI on the cards is sensed and as the control hole is.` only sensed during the first sensing stage vand: not during the second, the control pin 52 is-held up by the blank surface of the card'during the'- second sensing stage, therefore permitting freej movement of the sensing lever 64, so that the brackets |50 and |5| together with the parallel bars are returned by the spring |56 to the opera-y tive position. Accordingly during the second icyff cle after the change of designation the total tak When the last card in the'magazine has beensensed and the machine makes another sensing-,1 operation, there is no card in the pin box 29 and the control pin 52 would move down to its fullest' extent just as if acard havinga control -holewere present, and would cause a delay of lthe total taking operation Which automatically -joce; curs after the sensing of the lastcard.'

In specification No. 401,012 there isfdescribed a lever 41 (shown at |6|'in-th'e accompanying drawings) which rocks clockwisewhenthere ist no card in the pin box. l i

In the machine according tof-the invention* there is mounted about the pivot |62 of thislevera lever |64 connectedzby a spring |65 to the lever; |6| and having a nose |36 held by a spring |617` against a pin |68 on' a lever |69 freely mounted' OnthepivotlliZ.l "fi When there is no card in thepin box 29 the; lever |6| descends fand-the lever. |64: followsdtsg,

guides the vertical movement `of movement', Whereby'the spring I 61 pulls the lever |69 clockwise. A cam lug. |16 on thelower end of'thelever` |69 engages a lug |1| on the slide 55 and pushes this slide to the left thereby moving the armY 51 clear of the testing lever 64 so that the latter is free toA move without hindrance and the mechanism for delaying the total is not operated;

Inorderito render the mechanism according tothe inventioninoperative whendesired a manuallyfoperable control'device is provided'compris- Ying a plate |12 having a sl-ot |144 engaging pins |16 onthe bracket B0 so that the plate |12 can slide. The plate |12 is pivoted to a link |11. (Figs: 2- andv,9)l guided in a slot |18 on a bracket |19' xed to the machine frame and has at its free end a hand grip |80 (Fig. 9). In the positionshown in the drawings the plate |12' is in the position which permits two stage sensing to occur, i. e., each card which has a control hole will be held-in the pin box 29 during two consecutive reciprocations thereof, and each card which does not have a control hole will be held in the pin box 291 during only one reciprocation thereof.

If `the link |11is pulled to the right in Figs. 2

and 9 until the notch |8| engages with the bottomofthe slot |18 then the plate |12 is moved to the right and a projection |82 thereon holds the'lever |69 permanently over to-the right thereby pre-- venting it from operating. At the same time a camface |83 on theplate |12 engages an extension |84 of the arm.51l and holds the latter permanentlyv clear of the testing lever 64, so that the control pin 52 is ineffective.

The purposeof this arrangement is to render the ytwo stage sensing mechanism inoperative when the tabulator is handling a series of cards each of which carries only a single set of data perforations. Some of these cards may possibly bear, in the position used for the control hole, a hole which is only relevant when the card is beinghandled not in the tabulator, but in another machine, for example, a sorting machine. In such'a case it is desired that this particular hole shall be ineffective when the card is in the tabu-y lator.

The standardV form of card has 45 co-lumns for the? reception of v data, and each column has 12 hole positions.

In a card for use in machines according to the invention the holes punched at the first punching stage are punched' in the normal hole positions, While the holes punched at the second stage are punched' in the same columns but between the normal hole positions. Thus the digit 6 when punched in thenrst stage would be punched in the normal 6 position, but when punched in the second stagev the digit 6 would be punched between` the normal 6v and 7 positions. That is to say,the holes punched in the rst stage are nearer to the leading edge of the card by half the vertical pitch of the hole positions in the direction of the column, than are the holes punched in the. second stage.

The control hole is punched with the rst stage, and any designatory matter is also punched with the first stage. Thus cards for use according to the invention may have two sets of information'punched therein, together with a control hole' and asingle designation common to both sets of information.

' The machines according to the invention are particularly useful n that two lines of a customersnam'e andaddress-may be punched in a single card', and a quantity of goods, together with their value. may be punched at the same time as the holes representing the name are punched, so that at a'single passage of the card through the tabulator, the name, together with the quantity and value of the'goods are printed all in one line at the first sensing stage, while the address is printed on the next line below at the next stage. A designation, such as the date, may also be punched in the first stage, so that it is printed on the same line as the name.

The invention is also applicable to cards punched according to one or other of the usual codes, wherein in order to represent letters of the alphabet, two or more holes may be punched in one column, e. g., the letter F may be represented by a hole in the 12 position and a hole in the 3 position in the same column, while the letter T may be represented by a hole in the 11 position and a hole in the 3 position in the same column.

In such a case, if a card has the letter F punched in a given column in the first stage and the letter T in the same column in the second stage, then in that column there would be one hole in the normal 12 position and a hole in the normal 3 position representing F, together with a hole between the 11 position and the 0 position and another hole between the 3 position and the 4 position in the same column, these two latter holes representing T.V Thusrthere would be four holes in all in the one column.

What we claimis:

1. In a record card controlled statistical machine having card sensing means including a control sensing element positioned to sense a control hole in a card, the combination of a front card stop and a rear card stop, of which the front card stop is so disposed in relation to the sensing means as to arrest a card in position for sensing of holes punched therein in the normal hole positions thereon, while the rear card stop is disposed behind the front card stop by a distance equal to half the pitch of the hole positions along a card column, whereby said rear card stop, when projected alone into the card path arrests a card in position for sensing holes displaced from the normal hole positions by half the pitch of the said hole positions, continuously rotating feed rolls for feeding a card until said card is arrested by one or the other of the card stops, means normally operative to deliver a card to said feed rolls at each sensing operation, card stop actuating means normally operative to move both card stops into the card path at each sensing operation, means normally operative to withdraw both. card stops after each sensing operation, a device forv preventing the withdrawal of the rear card stop after the sensing operation during which a control hole is sensed whereby the card is advanced by the feed rolls until arrested by the rear card stop, a device for disabling the card stop actuating means during the sensing operation next following that in which a control hole is sensed, a device for rendering the card delivery means inoperative during the sensing operation next following that in which a control hole is sensed, normally inoperative actuating means for all said three devices, means operable by said control hole sensing element to render said actuating means operative, and means for restoring said actuating means to its normal inoperative condition after the sensing operation next following that in which a control hole is sensed.

sensing operation, a spring 2. In a record card controlled statistical machine having a main shaft and card sensing means including a control sensing element positioned to sense a control hole in a card, the combination of a front card stop and a rear card stop, of which the front card stop is so disposed in relation to the sensing means as to arrest a card in position for sensing of holes punched therein in the normal hole positions thereon, while the rear card stop is disposed behind the front card stop by a distance equal to half the pitch of the hole positions along a card column, whereby said rear card stop when projected alone into the card path arrests a card in position for sensing holes displaced from the normal hole positions by half the pitch of said hole positions, continuously rotating feed rolls for feeding a card until said card is arrested by one or the other of the card stops, means normally operative to deliver a card to said feed rolls at each to each card stop, said spring urging said card stops out of the card path, a shaft driven at half the speed of the machine main shaft, a cam secured to said half-speed shaft, and having two diametrically opposite peaks, a follower member connected to the front card stop and co-operating with said cam whereby said cam tends to raise the front card stop at each revolution of the main shaft, a one way connection stop and the rear card stop whereby when said front card stop is moved into the card path said rear card stop is also moved into the card path, a control shaft, normally inoperative means for rocking said control shaft, means for rendering saidrocking means operative when the control sensing element senses a hole, a connection between said control shaft and said follower member, operative when said shaft is rocked to withdraw the follower member fro-m engagement with the cam, thereby preventing the front card stop from being raised in the next following sensing operation on the card, a latch for the rear card stop, a connection between the control shaft and said latch, operative, when the control shaft is rocked, to cause the latch to engage the rear card stop and prevent its descent, normally ineffective means for disabling the card delivery means, means on said control shaft for rendering said disabling means effective when said control shaft is rocked, means actuated by the half-speed shaft after the second sensing operation has been performed on the same card to disengage the latch from the rear card stop, thereby permitting the rear card stop to descend and release the card, and means for restoring the control shaft to its normal position after the sensing operation next following that in which the control hole is sensed.

3. 1n a record card controlled tabulating machine having group control mechanism for initiating a total taking operation when a change inl group designation occurs, and card sensing means including a control sensing element positioned to sense a control hole in a card, the combination of a front card stop and a rear card stop, f which the front card stop is so disposed in relation to the sensing means as to arrest a card in position for sensing of holes punched therein in the normal hole positions thereon, while the rear card stop is so disposed behind the front card stop by a distance equal to half the pitch of the hole positions along a card column, whereby said rear card stop, when projected alone into the card path, arrests a between the front card holes displaced from by half the pitch of said hole positions, continuously rotating feed' rolls for feeding a card until said card is arrested by one or other of the card stops, means normally operative to deliver a card to said feed rolls at each sensing operation, a spring to each card stop, said springs urging said card stops out of the card path, a shaft driven at half the speed of the tabulator main shaft, a cam secured to said half speed shaft and having two diametrically opposite peaks, a follower member connected to the front card stop and co-operating with said cam whereby said cam tends to raise the front card stop at each revolution of the main shaft, a one-way connection between the front card stop and the rear card stop whereby when said front card stop is moved into the card path said rear card stop is also moved into the card path, a control mechanism normally inoperative means for actuating said control mechanism, means for rendering said actuating means operative when the control sensing element senses a hole, a connection between said control mechanism and said follower member, operative when said mechanism is actuated, to withdraw the follower member from engagement with the cam, thereby permitting the front card stop to descend under spring action after the rst sensing operation on the card, a latch for the rear card stop, control mechanism and said latch, operative when the control mechanism is actuated t'o cause the latch to engage the rear card stop and prevent its descent, normally ineffective means for disabling the card delivery means, means in said control mechanism for rendering said disabling means effective when said control mechanism is actuated, means actuated by the half speed shaft after the second sensing operation has been performed on the same card to disengage the latch from the rear card stop, thereby permitting the rear card stop to descend and release the card, means for restoring the control mechanism to its normal condition after the sensing operation next following that in which the control` hole is sensed, a device for rendering the groupv control mechanism inoperative and means, alsov actuated by the control mechanism, to rendersaid device effective in the cycle in which the control hole is sensed.

4. In a record card controlled statistical machine having card sensing means including a control sensing element positioned to sense a control hole in a card, the combination of a front card stop and a rear card stop, of which the front card stop is so disposed in relation Ato the sensing means as to arrest a card in position for sensing of holes punched therein in the normal hole positions thereon, while the rear card stop is disposed behind the front card stop by a distance equal to half the pitch of the hole positions along a card column, whereby said rear card stop, when projected alone into the card path, arrests a card in position for sensing holes displaced from the normal hole positions by half the pitch of said hole positions, continuously rotating feed rolls for feeding a card until said' card is arrested by one or the other of the card stops, means normally operative to deliver a card to said feed rolls at each sensing operation, a spring to each card stop, said springs urging said card stops out of the card path, means normally operative to move the front card stop into the card path prior to each sensing operation a connection between the and to release said front card stop to the action of its spring after each sensing operation, a one way connection between the front card stop and the rear card stop whereby when said front card stop is moved into the card path said rear card stop is also moved into the card path, a device operable to lock the rear card stop against the action of its spring, after the sensing operation during which a control hole is sensed, thereby preventing withdrawal f said rear card stop after said sensing operation, a device for disabling the operating means for the front card stop during the sensing operation next following that in which a control hole is sensed, a device for disabling the card delivery means during the sensing operation next following that in which a control hole is sensed, normally inoperative actuating means for all said three devices, means operable by said control hole sensing element to render said actuating means operative, and means for restoring said actuating means toits normal inoperative condition after the sensing operation next following that in which a con trol hole is sensed.

5. In a record card controlled tabulating machine having group control mechanism for iniu tiating a total taking operation when a change in group designation occurs, and card sensing means including a control sensingV element positioned to sense a control hole in a card, the combination of a front card stop and a rear card stop, of which the front card stop is so disposed in relation to the sensing means as to arrest a card in position for sensing of holes punched therein in the normal hole positions thereon, while the rear card stop is disposed behind the front card stop by a distance equal to half the pitch of the hole positions along a card column, whereby said rear card stop, when projected alone into the card path, arrests a card in position for sensing holes displaced from the normal hole positions by half the pitch of said hole positions, continuously rotating feed rolls for feeding a card until said card is arrested by one or the other of the card stops, a spring to each card stop, saidv springs urging said card stops out of the card path, means normally operative to move the front card stop into the card path prior to each sensing operation and to release said front card stop to the action of its spring after each sensing operation, a one-way connection between the front card stop and the rear card stop whereby when said front card stop is moved into the card path said rear card stop is also moved into the card path7 a device for rendering the group control mechanism inoperative, a device operable to lock the rear card stop against the action of its spring after the sensing operation during which a control hole is sensed, thereby preventing withdrawal of said rear card stop after said sensing operation, a device for disabling the operating means for the front card stop during the sens-ing operation next following that in which a control hole is sensed, a device for rendering effective, in the cycle in which a control hole is sensed, the device which renders the group control mechanism inoperative, normally inoperative actuating means for all said four devices, means operable by said control hole sensing element to render said actuating means operative, and means for restoring said actuating means to its normal inoperative condition after the sensing operation next following that in which a control hole is sensed.

6. In a record card controlled tabulating machine having card sensing means including a control sensing element positioned to sense a control hole in a card, and group control mechanism for initiating a total taking operation when a change in group designation occurs, said group control mechanism includingk a movable slide formed with a plurality of teeth, means tending to move said slide at each sensing operation, a plurality of rockable levers so mounted in relation to said slide that any one of said levers, when rocked, engages with a corresponding tooth of said slide to arrest the movement thereof and thereby initiate a total taking operation, and a plurality of control bars, one pivoted to each of said rockable levers, the combination of a front card stop and a rear card stop, of which the front card stop is so disposed in relation to the sensing means as to arrest a card in position for sensing of holes punched therein in the normal hole positions thereon, while the rear card stop is disposed behind the front card stop by a distance equal te half the pitch of the hole positions along a card column, whereby said rear card stop, when projected alone into the card path, arrests a card in position for sensing holes displaced from the normal hole positions by half the pitch of said hole positions, continuously rotating feed rolls for feeding a card until said card is arrested by one or the other of the card stops, means normally operative to move the front card stop into the card path prior to each sensing operation and to release said front card stop to the action of its spring after each sensing operation, a one-way connection between the front card stop and the rear card stop whereby, when said front card stop is moved into the card path, said rear card stop is also moved into the card path, a device operable to lock the rear card stop against the action of its spring after the sensing operation during which a control hole is sensed, thereby preventing withdrawal of said rear card stop after said sensing operation, a device for disabling the operating means for the front card stop during the sensing operation next following that in which a control hole is sensed, a device for disabling the card delivery means during the sensing operation next following that in which a control hole is sensed, a device for moving the rockable levers out of range of the teeth in the slide during the sensing operation in which a control hole is sensed, normally inoperative actuating Ymeans for all said four devices, means operable by said control hcle sensing element to render said actuating means operative, and means for restoring said actuating means to its normal inoperative condition after the sensing operation next following that in which a control hole is sensed.

ARTHUR THOR/IAS. NORMAN GEOFFREY HOLDEN. 

